Redesign video player (#4911)

* Redesign video player

* Use new video player on static public pages too

* Use media gallery component on static public pages too

* Pause video when hiding it

* Full-screen sizing on WebKit

* Add aria labels to video player buttons

* Display link card on public status page

* Fix fullscreen from modal sizing issue

* Remove contain: strict property to fix fullscreen from columns

app/javascript/mastodon/locales/pl.json

@@ -195,6 +195,15 @@
   "upload_button.label": "Dodaj zawartość multimedialną",
   "upload_form.undo": "Cofnij",
   "upload_progress.label": "Wysyłanie",
+  "video.close": "Close video",
+  "video.exit_fullscreen": "Exit full screen",
+  "video.expand": "Expand video",
+  "video.fullscreen": "Full screen",
+  "video.hide": "Hide video",
+  "video.mute": "Mute sound",
+  "video.pause": "Pause",
+  "video.play": "Play",
+  "video.unmute": "Unmute sound",
   "video_player.expand": "Przełącz wideo",
   "video_player.toggle_sound": "Przełącz dźwięk",
   "video_player.toggle_visible": "Przełącz widoczność",